Top Rankings
Cobb County School District ranks among the top 20% of public school district in Georgia for:
Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 18 public high schools serving 36,347 students in Cobb County School District. This district's average high testing ranking is 9/10, which is in the top 20% of public high schools in Georgia.
Public High Schools in Cobb County School District have an average math proficiency score of 46% (versus the Georgia public high school average of 33%), and reading proficiency score of 54% (versus the 42% statewide average).
Public High School in Cobb County School District have a Graduation Rate of 87%, which is more than the Georgia average of 85%.
The school with highest graduation rate is Harrison High School, with 97% graduation rate. Read more about public school graduation rate statistics in Georgia or national school graduation rate statistics.
Minority enrollment is 67% of the student body (majority Black), which is more than the Georgia public high school average of 65% (majority Black).
Overview
This School District
This State (GA)
# Schools
110 Schools
534 Schools
# Students
106,358 Students
577,747 Students
# Teachers
7,431 Teachers
35,722 Teachers
Student : Teacher Ratio
14:1
14:1
District Rank
Cobb County School District, which is ranked within the top 20% of all 222 school districts in Georgia (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 87% has increased from 84% over five school years.
Overall District Rank
#30 out of 222 school districts
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
47%
37%
Reading/Language Arts Test Scores (% Proficient)
50%
40%
Science Test Scores (% Proficient)
47%
40%
Graduation Rate
87%
84%
Students by Ethnicity:
Diversity Score
0.74
0.71
# American Indian Students
235 Students
1,205 Students
% American Indian Students
n/a
n/a
# Asian Students
6,284 Students
26,903 Students
% Asian Students
6%
5%
# Hispanic Students
27,323 Students
106,519 Students
% Hispanic Students
26%
18%
# Black Students
31,757 Students
213,852 Students
% Black Students
30%
37%
# White Students
34,953 Students
204,748 Students
% White Students
33%
36%
# Hawaiian Students
94 Students
662 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
5,712 Students
23,858 Students
% of Two or more races Students
5%
4%
Students by Grade:
# Students in PK Grade:
921
395
# Students in K Grade:
6,876
1,623
# Students in 1st Grade:
7,330
1,790
# Students in 2nd Grade:
7,568
1,912
# Students in 3rd Grade:
7,647
1,854
# Students in 4th Grade:
7,710
2,006
# Students in 5th Grade:
7,759
2,140
# Students in 6th Grade:
7,938
4,213
# Students in 7th Grade:
8,177
5,103
# Students in 8th Grade:
8,320
8,180
# Students in 9th Grade:
10,106
153,942
# Students in 10th Grade:
9,017
144,127
# Students in 11th Grade:
8,366
131,171
# Students in 12th Grade:
8,623
119,291
# Ungraded Students:
-
-
District Revenue and Spending
The revenue/student of $14,832 is higher than the state median of $14,305. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $13,692 is higher than the state median of $13,431. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$1,578 MM
$24,999 MM
Spending
$1,456 MM
$23,473 MM
Revenue / Student
$14,832
$14,305
Spending / Student
$13,692
$13,431
Best Cobb County School District Public High Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Walton High School
Charter School
(Math: 80% | Reading: 89%)
Rank:
Rank:
10/
Top 5%10
1590 Bill Murdock Rd
Marietta, GA 30062
(770) 578-3225
Marietta, GA 30062
(770) 578-3225
Grades: 9-12
| 2,685 students
Rank: #22.
Pope High School
(Math: 79% | Reading: 79%)
Rank:
Rank:
10/
Top 5%10
3001 Hembree Rd Ne
Marietta, GA 30062
(770) 578-7900
Marietta, GA 30062
(770) 578-7900
Grades: 9-12
| 1,758 students
Rank: #33.
Lassiter High School
(Math: 76% | Reading: 78%)
Rank:
Rank:
10/
Top 5%10
2601 Shallowford Rd
Marietta, GA 30066
(678) 494-7863
Marietta, GA 30066
(678) 494-7863
Grades: 9-12
| 1,949 students
Rank: #44.
Harrison High School
(Math: 70% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
4500 Due West Rd Nw
Kennesaw, GA 30152
(678) 594-8104
Kennesaw, GA 30152
(678) 594-8104
Grades: 9-12
| 2,170 students
Rank: #55.
Hillgrove High School
(Math: 67% | Reading: 66%)
Rank:
Rank:
10/
Top 10%10
4165 Luther Ward Rd
Powder Springs, GA 30127
(678) 331-3961
Powder Springs, GA 30127
(678) 331-3961
Grades: 9-12
| 2,290 students
Rank: #66.
Allatoona High School
(Math: 60% | Reading: 60%)
Rank:
Rank:
9/
Top 20%10
3300 Dallas Acworth Hwy Nw
Acworth, GA 30101
(770) 975-6503
Acworth, GA 30101
(770) 975-6503
Grades: 9-12
| 1,642 students
Rank: #77.
Kennesaw Mountain High School
(Math: 49% | Reading: 57%)
Rank:
Rank:
9/
Top 20%10
1898 Kennesaw Due West Rd Nw
Kennesaw, GA 30152
(678) 594-8190
Kennesaw, GA 30152
(678) 594-8190
Grades: 9-12
| 1,666 students
Rank: #88.
Wheeler High School
(Math: 53% | Reading: 50%)
Rank:
Rank:
9/
Top 20%10
375 Holt Rd Ne
Marietta, GA 30068
(770) 578-3266
Marietta, GA 30068
(770) 578-3266
Grades: 9-12
| 2,380 students
Rank: #99.
Sprayberry High School
(Math: 48% | Reading: 52%)
Rank:
Rank:
8/
Top 30%10
2525 Sandy Plains Rd
Marietta, GA 30066
(770) 578-3200
Marietta, GA 30066
(770) 578-3200
Grades: 9-12
| 1,799 students
Rank: #1010.
Kell High School
(Math: 45% | Reading: 56%)
Rank:
Rank:
8/
Top 30%10
4770 Lee Waters Rd
Marietta, GA 30066
(678) 494-7844
Marietta, GA 30066
(678) 494-7844
Grades: 9-12
| 1,582 students
Rank: #1111.
North Cobb High School
(Math: 41% | Reading: 45%)
Rank:
Rank:
7/
Top 50%10
3400 Old 41 Hwy Nw
Kennesaw, GA 30144
(770) 975-6685
Kennesaw, GA 30144
(770) 975-6685
Grades: 9-12
| 2,521 students
Rank: #1212.
Campbell High School
(Math: 29% | Reading: 47%)
Rank:
Rank:
6/
Top 50%10
925 Powder Springs St
Smyrna, GA 30080
(678) 842-6850
Smyrna, GA 30080
(678) 842-6850
Grades: 9-12
| 3,030 students
Rank: #1313.
Mceachern High School
(Math: 37% | Reading: 36%)
Rank:
Rank:
6/
Top 50%10
2400 New Macland Rd
Powder Springs, GA 30127
(770) 222-3710
Powder Springs, GA 30127
(770) 222-3710
Grades: 9-12
| 2,300 students
Rank: #1414.
South Cobb High School
(Math: 32% | Reading: 39%)
Rank:
Rank:
6/
Top 50%10
1920 Clay Rd
Austell, GA 30106
(770) 819-2611
Austell, GA 30106
(770) 819-2611
Grades: 9-12
| 2,137 students
Rank: #1515.
Cobb Horizon High School
(Math: 22% | Reading: 36%)
Rank:
Rank:
5/
Bottom 50%10
1765 The Exchange Se
Atlanta, GA 30339
(678) 594-8240
Atlanta, GA 30339
(678) 594-8240
Grades: 6-12
| 1,027 students
Rank: #1616.
Pebblebrook High School
(Math: 30% | Reading: 29%)
Rank:
Rank:
4/
Bottom 50%10
991 Old Alabama Rd Sw
Mableton, GA 30126
(770) 819-2521
Mableton, GA 30126
(770) 819-2521
Grades: 9-12
| 2,574 students
Rank: #1717.
Osborne High School
(Math: 15% | Reading: 27%)
Rank:
Rank:
3/
Bottom 50%10
2451 Favor Rd Sw
Marietta, GA 30060
(770) 437-5900
Marietta, GA 30060
(770) 437-5900
Grades: 9-12
| 2,773 students
Rank: #1818.
Devereux Ackerman Academy
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
2/
Bottom 50%10
1291 Stanley Rd Nw
Kennesaw, GA 30152
(770) 427-0147
Kennesaw, GA 30152
(770) 427-0147
Grades: K-12
| 64 students
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